Improper Engine Acceleration

Improper Engine Acceleration Problem Reasons :
Possible Causes :

1. Incorrectly adjusted carburetor
2. Defective accelerating pump
3. Cold oil
4. Defective tachometer
5. Improper propeller pitch or warped propeller
6. Improper throttle or mixture control linkage adjustment
7. Fuel valve leaking or not operating properly
8. Improper spark adjustment
9. Improper engine timing
10. Internal carburetor trouble, or pressure‐type carburetor in gravity fuel system
11. Air leaks or restriction in induction system


DTC engine OBD/2 fault codes list.

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